I’ve always theorized that if a motor can be turned by means of electromagnets, why can’t the same be done by use of permanent magnets. If you google it, some say they will sell you the plans to do such a thing, basically creating power from nothing…though many appear to be a scam. But really, why can’t electromagnets be substituted with permanent magnets? Being a technician and not a physicist, it would seem possible as both electromagnets and perm magnets share the same effect. I searched to review these products, some say it works with ties to the ones selling the products, others claim it to be impossible. However, when I try to view demonstrations that are no affiliated with someone trying to sell a product, the page has been removed for any number of reasons. Could it be the legit claims are silenced by major corporations? In either case, is this possible and if not…they why? Why can’t perm magnets be used in the same way as electromagnets when powering a motor which in turn could power a generator?
I understand that a magnet cannot be turned on and off, but the shaft can be inserted and removed. I say this due to the concern over this problem.
Chosen Answer:
this is a good conundrum,if you could come up with a way of switching a permanent magnet on and of to create a moving magnetic field i suppose it would be possible,i know it is possible to do this because there are magnetic chucks that do this,but its not easily done the effort needed to turn one off and on is considerable,ok so say this was possible ,a normal electric motor on no load uses power just to overcome the friction and back emf generated i wonder would a magnet/magnet motor have the same constraints and how would it generate back emf with no wires where would the current go would it just generate back magnetism,now when a conventional motor goes on load it just draws more power, where would a magnet/magnet get extra power from?
by:
on: 14th November 10
